JPH04265302A - Mounting structure of rail of conveyor - Google Patents

Abstract

PURPOSE:To widen the space of two straight rails in an elliptical rail composed of a curved rail coupled between the end sections of two juxtaposed straight rails without changing the size of the curved rail. CONSTITUTION:Two straight rails 4 are juxtaposed, quarter circular curved rails 5 are coupled to these end sections, and an elliptical rail 2 connecting the oppositely faced end sections of the curved rails 5 while interposing a straight rail 6 for direct or indirect adjustment. When the oppositely faced end sections of the curved rails 5 are coupled directly, the two straight rails 4 are disposed in an array at a minimum interval W. When the oppositely faced end sections are connected while interposing the straight rail 6 for adjusting the interval, the two straight rails 4 are disposed in an array at an interval, in which the length L of the straight rail 6 for adjusting the interval to the minimum interval W. Accordingly, the length L of the straight rail 6 for adjusting the interval is altered, thus setting the space of the two straight rails 4 in length larger than the minimum interval W.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention relates to a conveying device comprising, for example, rails disposed in a factory and a traveling trolley that is supported and guided by the rails and can freely travel along a fixed route.
This invention relates to the mounting structure of the rail.

0002

2. Description of the Related Art Conventionally, this type of conveying device has been provided, for example, in Japanese Patent Application Laid-Open No. 1-261103.

[0003] That is, a conveyance cart is provided so as to be able to travel freely on a loop path, and this loop path is formed by rails that support and guide the conveyance cart. This rail is composed of two straight parts arranged in parallel and a semicircular turn part connecting each end of these parts.

0004

[Problems to be Solved by the Invention] However, according to the above-mentioned conventional type, the turn part of the rail is connected to two straight parts, so when the two straight parts are arranged side by side with different intervals, It was necessary to create a new turn portion with a radius matching this spacing. As described above, the turn section cannot easily accommodate changes in the distance between the two straight sections, leading to an increase in manufacturing cost and manufacturing time of the rail.

Furthermore, when the distance between the two straight parts is wide,
Since a turn portion having a large radius is connected accordingly, this turn portion protrudes largely in the direction in which the straight portion extends. Therefore, the wider the distance between the two straight parts, the more
Due to the increased space required to install the turn section,
It became difficult to secure the space necessary for installation.

[0006] The present invention solves the above problem, and has a turn part that can easily accommodate changes in the interval between two straight parts, and can easily secure the space necessary for installing this turn part. The object of the present invention is to provide a rail mounting structure for a transport device.

[0007]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a transport device consisting of a rail and a moving body that is supported and guided by the rail and can freely run on a fixed path. Straight rails are arranged in parallel, quarter-circular curved rails are connected to the ends of these straight rails, and the opposing ends of these curved rails are connected directly or with a straight rail for adjusting the distance interposed. This is what I did.

[0008]

[Operation] With the above structure, when the opposing ends of the curved rails are directly connected, the two straight rails are arranged side by side with a minimum interval. In addition, when the opposite ends of curved rails are connected with a straight rail for adjusting the distance,
The two straight rails are arranged in parallel at an interval equal to the minimum interval plus the length of the interval adjusting straight rail.

[0009] As described above, by interposing the distance adjusting straight rail, the distance between two straight rails can be arbitrarily increased beyond the minimum distance without changing the dimensions of the curved rail.

Furthermore, when a curved rail is connected to a straight rail, the protruding length of the curved rail from the connecting point in the direction of extension of the straight rail is constant regardless of the distance between the two straight rails. .

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 to 3, 1 indicates a conveying device,
It is composed of a rail 2 and a traveling cart 3, which is an example of a moving body that is supported and guided by the rail 2 and can freely travel on a fixed route. The rail 2 consists of two parallel straight rails 4 and a quarter-circular curved rail 5 connected to the ends of these straight rails 4. , are connected directly or via a straight rail 6 for adjusting the distance.

Each of the above-mentioned rails 4, 5, and 6 has a C-shaped cross section, and has a flat wheel receiving surface 7 formed on the entire upper surface thereof, and has a dovetail groove 8 open downwardly at the lower part over the entire length, and on both the left and right sides. It is divided into two articles (multiple articles).

[0013] On the outer surface of each of the rails 4, 5, and 6, two dovetail grooves 9 which are open to the sides are formed over the entire length and distributed vertically. In addition, each rail 4,
A trapezoidal groove 10 that is open downward is formed over the entire length of the upper and lower surfaces of 5 and 6.

Guide roller guide surfaces 12, 1 are provided on both outer surfaces of the upper and lower parts of each rail 4, 5, 6, respectively.
3, 14, and 15 are formed. Each rail 4, 5, 6
is obtained, for example, by pultrusion of aluminum.

Each of the rails 4, 5, and 6 is disposed on a base member (floor or floorboard) 16 via leg members 17 and connecting members 18. That is, the leg member 17 has a gate shape, and is fixed by fitting a flange portion 19 bent outward from the lower end onto a bolt 20 from the base member 16 side, and then engaging and tightening a nut 21. Ru.

The connecting member 18 connects each rail 4, 5, 6.
It consists of a main body 22 that can freely come into contact with the lower surface of the main body 22, a pair of left and right nut parts 23 integrally formed on both sides of the main body 22, and bolts 24 that are intertwined with these nut parts 23 from below. Then, insert the bolt 25 passed through the main body 22 from below into the dovetail groove 8.
The main body 22 can be fixed to the lower surface of each rail 4, 5, 6 by engaging and tightening a plate-shaped nut body 26 provided therein, and the bolt 24 is inserted into the top plate portion of the leg member 17. At the same time, by tightening the upper and lower pairs of nuts 27 and 28 that are engaged with the bolts 24 to clamp the top plate,
It is fixed to the leg member 17 with its vertical position adjustable.

As shown in FIGS. 4 and 5, each rail 4
, 5, and 6, the leg member 17 and the connecting member 18 are provided to support the ends of the two rails 2 that are connected to each other. That is, these rails 2
Each end is connected to the bolts 25 provided in pairs on the front, rear, left and right sides.
and the nut body 26 inserted into the dovetail groove 8 between both ends thereof.

Further, a connecting plate 31 is inserted into each of the dovetail grooves 9 between both ends to which the rail 2 is connected, and a set screw 3 is inserted between the left and right ends of the joint 29.
2 and is pressed against the rail 2 and fixed. Further, a trapezoidal connecting plate 33 is inserted into the groove 10 between both ends of the rail 2 to be connected, and is fixed to the rail 2 by a countersunk screw 34 provided between both left and right ends of the seam 29. There is.

A plurality of angled joint members 35 are installed between the two straight rails 4 arranged in parallel, and both ends of the joint members 35 are fixed to the lower surface of the main body 22 via the bolts 25, respectively.

The C-shaped rail 2 has an installation space 3 inside.
6, and a power supply device 37 is arranged within this arrangement space 36. The power supply device 37 has a rail member 39 for power supply and signal use on the inner surface of an insulating member 38, and is fixed to the rail 2 with bolts or the like.

[0021] A traveling bogie 3 supported and guided by the rails 2
has a pair of front and rear wheels 42 disposed on the lower surface of its main body 41, and by placing these wheels 42 on the wheel receiving surface 7, it can run freely on a fixed route. and wheel 4
2, a traveling drive device (such as a motor) provided on the main body 41 side
43 are interlocked and connected. Furthermore, guide rollers 44, 45, 46, and 47 are attached near both wheels 42 and can come into contact with guide roller guide surfaces 12, 13, 14, and 15, respectively. A current collector 48 corresponding to the power supply device 37 is provided on the main body 41 side.

[0022] The operation of the above configuration will be explained below. When installing the rails 2 on the base member 16, each rail 4
, 5, 6 are connected by connecting plates 31, 33. At this time, when the opposing ends of the curved rails 5 are directly connected, the two straight rails 4 are arranged in parallel with the minimum interval W.

Furthermore, as shown in FIG. 2, the curved rail 5
When the opposing ends of the two straight rails 4 are connected through a linear rail 6 for adjusting the distance, the distance between the two straight rails 4 is the minimum distance W plus the length L of the straight rail 6 for adjusting the distance. are installed in parallel.

Therefore, by interposing the distance adjusting straight rail 6 and changing the length L of the distance adjusting straight rail 6, the distance between the two straight rails 4 can be changed by changing the dimensions of the curved rail 5. It is possible to arbitrarily widen the distance beyond the minimum distance W without causing any problems. Further, when the curved rail 5 is connected to the straight rail 4, the protrusion length R of the curved rail 5 from the joint 29 in the direction of extension of the straight rail 4 is related to the interval between the two straight rails 4. It remains constant.

Supported and guided by the rails 2 arranged in this manner, the traveling carriage 3 rotates the wheels 42 forcibly by the operation of the traveling drive device 43, thereby moving the guide roller guide surfaces 12, 13, 14, 15. Guide roller 44 facing
, 45, 46, 47 while being guided along a fixed route.

In the above embodiment, a single oblong rail 2 consisting of two straight rails 4, a curved rail 5, and a straight rail 6 for adjusting the distance is provided. In addition, an oblong rail consisting of two straight rails, a curved rail, and a straight rail for adjusting the distance may be provided to form two rails.

[0027]

As described above, according to the present invention, a quarter-circular curved rail is connected to the end of a straight rail, and the opposing ends of these curved rails are connected directly or with a straight line for adjusting the distance. By connecting the two straight rails with the intervening rail, the distance between the two straight rails can be arbitrarily increased by the length of the distance adjusting straight rail without changing the dimensions of the curved rail.

[0028] This makes it unnecessary to manufacture curved rails with different dimensions each time, even if the spacing between the straight rails is different for each conveying device installed at a different location. Therefore, the manufacturing cost of the rail can be reduced, and the manufacturing time can also be shortened.

Furthermore, when a curved rail is connected to a straight rail, the protruding length of the curved rail from the connecting point in the direction of extension of the straight rail is constant regardless of the interval between the two straight rails. Become. As a result, even if the distance between two straight rails is wide, there is no need to take a correspondingly large space for installing a curved rail. Therefore, since the curved rail can be installed within a limited space, the space can be used effectively.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a conveying device showing an embodiment of the present invention.

FIG. 2 is a plan view showing a curved route portion of the rail.

FIG. 3 is a cross-sectional view of the same rail.

FIG. 4 is a cross-sectional view showing a connecting portion of the rail.

FIG. 5 is a view taken along the line A-A in FIG. 4;

[Explanation of symbols]

1 Conveyance device 2 Rail 3. Traveling trolley (mobile object) 4 Straight rail 5 Curved rail 6 Straight rail for spacing adjustment 8 Dovetail groove 9 Dovetail groove 10 Groove 16 Base member 17 Leg member 18 Connecting member 22 Main body 25 bolts 26 Nut body 29 Seam 31 Connecting plate 32 Set screw 33 Connecting plate 34 Flat head machine screw 37 Power supply device 42 Wheels 48 Current collector

Claims (1)

[Claims] Claim 1: A transport device consisting of a rail and a moving body that is supported and guided by the rail and can freely run on a fixed path, in which two straight rails are installed side by side, and the end portions of these straight rails are 1. A rail mounting structure for a conveying device, characterized in that quarter-circular curved rails are connected, and the opposing ends of these curved rails are connected directly or via a straight rail for adjusting the distance.